Structural Mechanics
Byggnadsmekanik

VSMA06, 7.5 credits, G1 (First Cycle)

Valid for: 2024/25
Faculty: Faculty of Engineering LTH
Decided by: PLED V
Date of Decision: 2024-04-17
Effective: 2024-05-08

General Information

Main field: Technology Depth of study relative to the degree requirements: First cycle, in-depth level of the course cannot be classified
Mandatory for: V2
Language of instruction: The course will be given in Swedish

Aim

The aim of the course is to give an introduction to structural mechanics with application to types of structures that are common in buildings and infrastructure.

The course is built upon previous courses in especially mechanics, mathematics and material science and is intended as basic general knowledge for a MSc in Civil Engineering and to give necessary prerequisites for further studies in structural and geotechnical engineering and more advanced structural mechanics.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

• Be able to explain basic concepts and relations within the area.
• Be able to describe the mode of action of the structural elements bar and beam.
• Be able to describe the general appearance of the deformed shape and section forces for simple structures and loadcases.
• Be able to describe the general appearance of the stress distribution caused by axial load, bending or torsion in a beam.

Competences and skills
For a passing grade the student must

• Be able to choose a suitable model for analysing a simple structure.
• Be able to calculate section forces, stresses and deformations for bars, trusses, beams, simple frames, shafts and simple composite structures.
• Be able to determine principal stresses and directions for a two-dimensional stress state.
• Be able to analyse columns with respect to buckling and second order theory.
• Be able to analyse free-vibration response and response to harmonic loading for a single-degree-of-freedom system.
• Be able to independently present a clear and correct written solution to a problem (given data, assumptions, calculations, results, conclusions).
• Be able to orally present the solution of a problem in front of a group of students and teachers.

Judgement and approach
For a passing grade the student must

• Be able to assess the reasonableness in an obtained result.

Contents

The course starts with a revision of free-body diagrams and equilibrium, with application to trusses, and introduction of the concepts stress and strain.

• Free-body diagrams and equilibrium. Trusses. Stress, strain and stress-strain relationships.

After that follows a compehensive treatment of Bernoulli's beam theory:

• Section forces in beams. Normal stress and shear stress for elastic bending of beams. Plastic bending of beams. Deflection of beams. Statically indeterminate beams.

Finally, some furter subjects within structural mechanics are introduced:

• Columns; buckling and second order theory. Torsion of circular cross sections. Transformation of stress and strain, principal stresses, yield criteria. Dynamics; free vibrations and response to harmonic loading for simple structural elements.

Examination details

Grading scale: TH - (U, 3, 4, 5) - (Fail, Three, Four, Five)
Assessment: Two hand-in assignments (one of which is also presented orally), one laboratory assignment and one written examination.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.

Modules
Code: 0124. Name: Written Examination.
Credits: 6.0. Grading scale: TH - (U, 3, 4, 5). Assessment: Written examination The module includes: Hela kursen
Code: 0224. Name: Hand-in Assignments.
Credits: 1.5. Grading scale: UG - (U, G). Assessment: Two hand-in assignments, one of which is also orally presented, and one laboration.

Admission

Assumed prior knowledge: VSMA25 Mechanics
The number of participants is limited to: No
Kursen överlappar följande kurser: VSM140 VSM141 VSMA10 VSMA20 VSMA11 VSMA05

Reading list

• Heyden, S., Dahlblom, O., Olsson, A., Sandberg, G: Introduktion till strukturmekaniken. Studentlitteratur, 2017, ISBN: 9789144084060.
• Språkrådet: Svenska skrivregler. Liber, 2017, ISBN: 9789147111497. Reference.
• Programledning V: Anvisningar för rapporter på V-programmet. 2015. Available on the programme's website.

Contact

Course coordinator: Universitetslektor Susanne Heyden, susanne.heyden@construction.lth.se
Course homepage: https://www.byggmek.lth.se/utbildning/kurser

Further information